LAPACK

Linear algebra library in Fortran 77:

solution of systems of equations

solution for eigenvalue problems

Combine algorithms from LINPACK and EISPACK into a single package
Efficient on a wide range of high-performance computers
Single and double precision routines
Complex counterparts

User interface similar to LINPACK
Built on the Level 1, 2, and 3 BLAS

Slide 62 of SIAM Tutorial, Jack Dongarra UT/ORNL. (Updated 01/31/95)